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@article{JRAM_1969__235_150919, author = {H. Kober}, title = {Operators involving entire functions.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {115--132}, publisher = {mathdoc}, volume = {235}, year = {1969}, zbl = {0174.19601}, url = {http://geodesic.mathdoc.fr/item/JRAM_1969__235_150919/} }
H. Kober. Operators involving entire functions.. Journal für die reine und angewandte Mathematik, Tome 235 (1969), pp. 115-132. http://geodesic.mathdoc.fr/item/JRAM_1969__235_150919/